Thus was it said by the Blessed One, said by the Arahant, as I have heard:

"Bhikkhus, for a trainee bhikkhu whose mind has not yet attained the unsurpassed security from bondage, who is dwelling and aspiring for it, I do not see any other single factor as so helpful as wise attention. Bhikkhus, a bhikkhu attending wisely abandons the unwholesome and develops the wholesome."

The Blessed One spoke on this matter. In this regard, it is said:

"Wise attention, is the quality of a trainee bhikkhu; No other factor is as helpful, for attaining the highest goal; The bhikkhu who strives thoroughly, reaches the end of suffering."

This matter too was spoken by the Blessed One, as I have heard.